Monday, March 20, 2017

What a jerk!

The Falcon Rocketeers get ready to weigh their rocket before a flight (Click to enlarge).
We are now in "crunch time" - those last couple of weeks before the TARC deadline, ones in which the teams make every effort to get some practice in before setting up their qualification flights. Pegasus field hosted the Falcon Rocketeers and Hope Rising on Thursday, which tuned out to be a good day for both teams. Falcon had no catos and achieved a couple of decent flights, so they decided to make a qualification attempt. Unfortunately the rocket traveled a bit too high, yielding a not-so-good 51 as their first score. Disappointing, but at least they have a qual flight in the books - quite a few teams don't turn in a single qualification score. Hope Rising shook off the infamous Estes E cato curse that had been plaguing the team, rallying after an initial cato to produce two good practice flights with altitudes just over 800 feet. They were back at Pegasus on Saturday, when the Z-95 Headhunter demonstrated the "Right Stuff" by soaring to altitudes of 773 and 778 feet, just 2 and 3 feet off the mark! They were having a bit of a problem with thermals towards the end of the day, so they wisely decided to waive off a qualification attempt. This was smart, as their last flight was way long on duration.

Hope Rising prepping Headhunter for its first flight of the day (Click to enlarge).
Which brings us to today...

I stopped by the field on my way home from work to find the Hope Rising team setting up for their first practice flight. The rocket weather cocked a bit in the 8 mph wind, reaching a low peak altitude of 730 feet. Drifting about 100 yards to the northeast, the payload section decided to plop itself in the branches of a tree, about 20 feet or so off the ground. Fortunately, it was recovered without damage. The sustainer... well, that's a different story.

Headhunter on the pad (Click to enlarge).And in the air (Click to enlarge).
The sustainer drifted about as far as the payload section; however, it made for the east side of Pegasus, landing in the road, near the edge of the asphalt. The kids on recovery were almost to the road when it touched down, but had to wait to retrieve the rocket because of an oncoming car. The driver of this vehicle, on seeing the rocket hit the pavement, deliberately swerved his car and ran over the sustainer, crushing it. We were dumbfounded - NEVER, in all the years I have been involved with TARC, have I seen such a display of downright meanness. I have to give Hope Rising credit - they took it in stride, returning the remains of their rocket to the prep table and immediately setting to work to get another sustainer ready for flight. In an ironic twist, these teens served as role models to the parents on the field, who were pretty pissed off, if I may be so blunt. Hope Rising made one more flight, in which their rocket overshot altitude and duration, before packing it in for the day. As I left the field, I found myself admiring their quiet resolve - I really hope they make it to Nationals.

The sustainer after being run over by the car (Click to enlarge).
And I hope karma catches up to that jerk in the car.

Sunday, March 12, 2017

The Destroyer of X-Wings...

Folks gather round the HARA table at the U.S. Space and Rocket Center (Click to enlarge).
Yesterday, the Jurassic TARC and Hope Rising TARC teams practiced at Pegasus field, but I was not there. HARA has a new arrangement with the U.S. Space and Rocket Center (USSRC) to occasionally perform rocket demos, exhibits, and trainings on the museum grounds, and yesterday - USSRC Boy Scout Day - was one of those. Daniel, Allen, and I arrived a little before 11 AM, and we set up our display and my launch pad in the rocket park, near where the old Saturn V used to lay on its side (It's now safely inside the Davidsson Center at the USSRC, refurbished and protected from the elements). Unlike past Saturdays, the weather was not favorable for flying rockets - gloomy and cold, with a wind out of the north and the looming threat of rain. But, being veteran rocketeers, we decided to make a go of it anyway, hoping to put a few in the air for the benefit of those wandering around the rocket park.

Allen explains rocketry basics (Click to enlarge).
I had brought 3 "sacrificial lambs" to fly - my hardy Estes Snitch saucer,  a Space Camp Research Vehicle (I figured this would be appropriate), and one of the 1997 13mm Estes X-Wings. The Snitch flew several times, amusing spectators with its looks and by never landing on its wire legs. It was kind of battered after the fifth impact on the asphalt - a leg pylon had cracked and there was a break in the plastic above another pylon. I decided to retire it for the day, before another landing rendered it unrepairable. The X-Wing made two flights, both on Estes A3-4T motors. In both cases, the engine pod failed to eject, resulting in the rocket plummeting to the ground. On the first flight, it fell horizontally and landed on a patch of grass, resulting in no damage. However, on the second the pilot must have kicked in the light speed engines on the way down, because the X-Wing shrieked straight in and smashed into the asphalt, sending pieces flying everywhere. The rocket is a goner, much like its bigger brother in 2005, who suffered a similar fate at a launch in north Georgia. I was left wondering if I am secretly allied with the Dark Side of the Force, because I sure am tough on X-Wings.

Daniel hooks up his Estes Gauchito (Click to enlarge).The shattered remains of my X-Wing (Click to enlarge).
Daniel flew his Estes Gauchito - one of the old X-prize kits - on an A10. It too had a recovery failure, and the impact with the asphalt broke a couple of fins. Allen flew his Sonoma a couple of times before landing damage forced him to retire the rocket. The bravest of us all, he dared to fly his Jolly Logic Altimeter 2 in the model, surrounded by rocket eating trees and a harsh, unforgiving asphalt landing surface. The altimeter survived, registering both flights as topping out above 150 feet (I forget the exact numbers). In contrast, I was a chicken, opting to cut my losses by not flying the SCRV.
Allen and Vince talk rockets at the HARA display (Click to enlarge).
The folks in the rocket park enjoyed the launches, especially the kids, some of whom got to press the launch button. Daniel's Jayhawk and Little Joe II rockets got quite a bit of attention, as their large size and beautiful detailing could not be missed by those passing by. Daniel is a true master craftsman, and I can only hope that any high power rockets I may build in the future look 1/10 as good as his. Around 12:30, Vince arrived along with some sprinkles of rain, and we decided to move the display indoors by the Space Station exhibit. I was secretly glad, as the asphalt had claimed enough victims for the day. Or maybe I was being a bit hard on the asphalt, because one could argue that the damage would not have happened if the recovery systems had deployed - maybe the fault lay with the rocketeers more than the environment.

Daniel chats with an interested family (Click to enlarge).
The next hour and a half saw Vince, Daniel, and Allen chatting up rockets to those that passed by our table. The crowd was not the biggest I have seen at the USSRC - I'm sure that the icky weather was a factor - but we did have folks stop and show interest. I was some distance away from the display, sitting down nursing my sore knee, which has a minor stress fracture. At 2 PM, we packed things into Daniel's truck and headed to our respective abodes. All-in-all, it was not a bad day - we got to fly some rockets and sparked some interest in rocketry, which more than offset the model damage. I do think that we need to build some F/G powered saucers for these demos, as they produce a lot of noise and smoke, and are robust enough to take the landings on asphalt. And maybe we need to take a refresher course in parachute packing as well.

Sunday, March 5, 2017

HARA and a 1988 commercial launch from the Cape...

The tech talk at the March club meeting was by Wayne McCain, a former HARA member from way, way back. His topic was the first commercial launch (with a paying customer) from Canaveral Air Force Station, one in which a couple of HARA members (he and Matt Steele) played prominent roles. The rocket was a LOFT-1 (Launch Operations Flight Test), a 10 foot, 6.1 inch diameter vehicle powered by a N5000 motor developed by Vulcan Systems. Imagine - a N class motor back in 1988! Actually, there were three of these beasties made, but the ATF confiscated two when regulations set in - their fate is unknown, but it is probable they were destroyed. Anyway, here is Mr. McCain's talk (about 30 minutes in length):


Inspired by the talk, I gathered together the available data - which wasn't much - on LOFT-1, and concocted an 18 mm BT-55-based downscale in OpenRocket:
OpenRocket downscale of LOFT-1 (Click to enlarge).
3D representation of LOFT-1 downscale (Click to enlarge).
Looks like I have a new entry on the build list...

Saturday, March 4, 2017

Pads galore at Pegasus...

Liberty watches their rocket soar upward into a sunny blue sky (Click to enlarge).
Today was another perfect day for flying, and four TARC teams - Liberty Middle School's Team Bazinga, Hope Christian Academy's Hope Rising, and Pope John Paul II's Falcon Rocketeers and Jurassic TARC - gathered at Pegasus field just after noon for practice, taking advantage of the mild temperature and very light winds. For Liberty, it was a good day; one of their flights achieved a maximum altitude of 768 feet, just 7 feet off the mark. Jurassic TARC had a so-so day - their rocket ("Rudolph") continues to be a bit squirrely when it leaves the rod, prompting Duane, their benevolent dictator, to once again suggest increasing the area of their fins. Even so, they achieved altitudes just over 800 feet; they just need to work on straightening their rocket's trajectory so it doesn't angle off so badly exiting the rod.

Liberty inspects their rocket before launch (Click to enlarge).
The Falcons prep their rocket as the benevolent dictator looks for some goodies in his parts bin (Click to enlarge).
Hope Rising's very nice rocket prep area (Click to enlarge).
You know it's crunch time when the weather gear
appears on the field! This is Hope Rising's weather
station (Click to enlarge).
Jurassic TARC's Rudolph starts another flight
(Click to enlarge).
The other two teams - the Falcon Rocketeers and Hope Rising - had some issues. Whereas Hope Rising's rocket ("Z-95 Headhunter", after a ship in Star Wars), was 150 feet or so low, Falcon's rocket had difficulty even leaving the pad. Improper assembly of reloads lead to motor huffing and puffing and rocket disassembly on the rod. After their last two flights went nowhere, Falcon left the field considering switching to single use motors. Probably a good idea, though it's a bit late in the season for a motor change. Hopefully they can put in enough practice to get good qualification scores.

The Hope Rising team gets the award for the most spectacular flight of the day. On Headhunter's final flight, the Estes black powder motor CATO'd, sending balls of flame everywhere and the rocket's egg capsule on a ballistic trajectory. Miraculously, the damage to Headhunter was minor - the engine block had been blown out of the rocket. I fully expect it to be back to flight worthy status in a day or so. However, this only adds to the notoriety of the Estes E motors - it seems like you have a 50/50 chance of a pad explosion every time you use one.

Smoke and fire erupts from Z-95 Headhunter as the Estes E motor CATO's just past ignition (Click to enlarge).

As usual, there were more than TARC rockets flown today - Doug brought several low power birds, including an old Estes Star Wars X-Wing. He had to perform a little surgery on his 40 year old Estes Big Foot pad to get it operational, after which several more flights were added to this vintage pad's huge launch count. The X-Wing flew just fine, but the parachute got caught on one of the wings (a common mishap for this rocket), causing it to fall horizontally to the ground. Thankfully, the damage was minor.

Doug's X-Wing leaves the Big Foot's rod
(Click to enlarge).
A Swift decides to eat some dirt (Click to enlarge).
Marc flew his Aspire on an Aerotech F motor, followed by two flights of his shiny Executioner, also on F's. Both rockets were equipped with the Jolly Logic Chute Release to ensure recovery within the field, but the Executioner had an additional twist - a programmable "chute reefer" developed by Marc to give himself an edge in Geezer TARC. The thing actually worked, as we could see the parachute pull in a bit towards the end of the flight, a fact borne out by the increased descent rate logged by the altimeter. Nice going Marc!

Marc's Aspire streaks upward (Click to enlarge).Marc's Executioner about to clear the rod of his
Aerotech Mantis pad (Click to enlarge).
I have a rule - no visits to Pegasus without at least one rocket to fly. Today, I brought two - my Estes Trajector and Estes Majestic, both loaded with Estes black powder E16 motors. These rockets are the super easy "just add epoxy" members of the Estes Pro Series II line, found in Hobby Lobby and other such stores.The flights went off without a hitch, with altitudes in the 600-700 foot range and nice soft landings under the nylon parachutes.

My Majestic rides an E16 into the blue
(Click to enlarge).
The Trajector leaves the rod (Click to enlarge).
The flying went on for some three hours - Duane and I left the field just before 4 PM, leaving Hope Rising, who were still flying low power models. Got to admire their enthusiasm!

My Trajector descending under a red nylon parachute (Click to enlarge).

Tuesday, February 28, 2017

Bill's NARCON adventure...

Inert Black Brant sounding rocket in the hotel parking lot. We got a visit from the police - who fortunately had a
sense of humor - when someone reported this to the authorities (Click to enlarge).
This past weekend, I checked off one of the items on my bucket list by showing up at NARCON, the annual convention of the National Association of Rocketry (NAR). This was my first time at this event, and my expectations were at the modest level, set there by so-so reports of past NARCONs. However, I figured it was worth the flight to Dulles and the cost of the hotel to see what one of these critters was like, and so I showed up at the Crowne Plaza Dulles Hotel late Thursday night. The hotel accommodations were ok, not great, but I am pleased to report that the 2017 NARCON exceeded my expectations by a considerable amount - simply put, this gathering of rocketeers was fabulous!

The first event of this year's convention - a tour of Aurora Flight Sciences - occurred on Friday afternoon. Unfortunately, I did not go, hesitant to risk making my injured right knee worse. I was disappointed, for the honcho of Aurora is John Langford, who is an acquaintance from my misbegotten youth. Back in the summer of 1974, John and I attended the Georgia Governor's Honors Program at Wesleyan College - he was an ace rocketeer, readying an Athena scale model for international competition, and I was the enthusiastic pain-in-the-butt sophomore dogging his steps. John was very patient, taking my annoying behaviors in stride, and I learned a lot from him; my sojourn into competition rocketry was fueled by the Governor's Honors experience. Despite missing the Aurora tour, I did get to briefly catch up with him on Saturday. Even though he operates a very successful company, John is still a rocketeer, helping NAR and serving as manager of the U.S. team in international competitions. The success that was evident in 1974 has manifested in multiple arenas over the years.

John Hocheimer presents the 'State of NAR' at the town hall (Click to enlarge).
Friday night was the NAR town hall, where the 'State of NAR' presentation is given. Bottom line, NAR is doing well, but we still need to attract young folk - a significant fraction of the membership are tottering old baby boomers like me. I passed a few minutes before the town hall ogling some rockets from an estate that were being sold by the host section, NOVAAR (Northern Virginia Association of Rocketry). It was a sore test of will power, for there were some mighty sweet deals in those bins!

Matt Steele presents his analysis of the S1 Altitude event at the R&D session (Click to enlarge).
The town hall was followed by the R&D presentations, the topics of which ranged from designing better competition glider wings (done by a high school student!), to analysis of the factors influencing competition altitude (mainly weight), to building a pressure simulator that can be used to investigate altimeter filtering algorithms, to looking at the consistency in the added boost provided by piston launchers (it adds up to 30 meters per second to the rocket's speed). I also enjoyed Tim Van Milligan's presentation on the drag of launch lugs and rail buttons; he used Adobe FlowView as a virtual wind tunnel in his investigations, which showed that a) rail buttons are draggier than launch lugs, b) longer launch lugs are less draggy than short ones, and c) angling/beveling the forward end of the lug reduces its drag. There is quite a bit of research going on within NAR, no doubt helped by the generous cash prizes given to the winners of the R&D competition.

Jim Barrowman talks about the factors governing rocket stability (Click to enlarge).
The sessions started on Saturday at 9 AM. There were four parallel tracks, which forced me to choose which talk I would attend in each time slot. This was not easy, as there were some pretty interesting presentations that made the picking tough. If HARA ever hosts a NARCON, I will push for 2 parallel tracks and a half day longer convention to reduce anguish caused by this choosing of talks. Anyway, I opted to attend the following:
  • The Stine and Desind Collections at the Smithsonian, by Brian Nicklas (one of the archivists)
  • Making Lightweight Fiberglass Bodies, by Tim Van Milligan of Apogee
  • Finishing and Painting Rockets, by Carl Curling of NOVAAR
  • RockSim Design and Flight Simulation for TARC, by Tim Van Milligan of Apogee
  • Model Rocket Stability and Aerodynamic Equations, by Jim Barrowman (who developed the Barrowman equations for calculating rocket center of pressure - this guy is a legend in the community, with good reason)
  • Flight Testing in TARC, by Trip Barber, NAR TARC Manager
  • The New Look of NAR Competition, by Ed LaCroix (one of the folks trying to make rocket competition more attractive, thereby saving it from extinction)
Can you believe this fiberglass rocket weighs only
10 grams (Click to enlarge)?!
One of the TARC rockets used to develop this
year's rules (Click to enlarge).
My brain was about to burst when the last session ended at 5 PM, but I had to jump across the hall to attend the manufacturers presentations. There were nine of these, each song and dance allotted about 5 minutes:
  • Matt Steele, who announced the Hobgoblin (a 29 mm pseudo upscale of the Estes Goblin) and a scale SLS kit.
  • Gary Rosen of AeroTech, who showed off the new Arreauxbee-Hi and Monstra rocket kits (the Monstra can be used to certify level 1 and level 2). The 18 mm composites are coming along, but no release date as of yet (we did get to see some cool looking A3-4's in their packaging though).
  • Randy Boadway of eRockets, who showed off the new Maple Leaf and Jaybird rocket kits. He also displayed a re-engineered Scissors Wing that may also be released later, provided Estes doesn't bring it back.
  • Tim Van Milligan of Apogee Components, who talked about future plans, some of which involve releasing Shrox designs, such as the SkunkWulf (alas, no RockSim update was announced).
  • Wes Oleszewski (the infamous Dr. Zooch), who was promoting his line of "Growing Up With Spaceflight" books. I have read the first one on Project Mercury, and it is VERY good.
  • Andy Jackson of Aerospace Specialty Products, who proudly displayed his line of 29mm scale kits.
  • John Beans of Jolly Logic, who got me very excited about the upcoming Altimeter 4, which is small and incredibly powerful. I cannot wait for its release later this year!
  • Doug Frost of Frost Rocketry, who was promoting his rocket golf kits. He goes around challenging golfers to best his models in rounds of golf - they use clubs, he uses his rockets.
  • Cosmic Vests and Ties, who were modeling their line of space-themed vests and ties.
Randy Boadway of eRockets displays the Maple Leaf and Jaybird (Click to enlarge).
The new Arreauxbee-Hi and Monstra from AeroTech (Click to enlarge).
AeroTech 18 mm composites (uses Blackjack formulation - Click to enlarge).
Matt Steele shows off the Hobgoblin. He is also developing a line of motor retainers that look like nozzles - he's
holding one to the back of the Hobgoblin (Click to enlarge).
I then rushed up to my room to "freshen up" before the banquet began at 7. The guest of honor was Lee Piester, who is the founder of Centuri, one of the big two rocket companies of the 60's and 70's (the other being Estes, of course). My first rocket was a Centuri Javelin, so I was very eager to hear Lee's perspective on those days. His talk was terrific, and he kindly autographed one of my old Centuri catalogs - an excellent end to a good day. I also have to give a shout-out to John Beans, who donated 17 Chute Releases as door prizes for the banquet. Naturally, I got nothing, but Vince, who was seated next to me, won one of those beauties. Some people just have all the luck!

Lee Piester presents his "Centuri Memories" at the banquet (Click to enlarge).
After the banquet, I spend some time at the hotel bar talking with Daniel, the Rocket N00b and one of three hosts of The Rocketry Show podcast. He and one of the other hosts, C. G., were there at NARCON, interviewing the rocket luminaries for the podcast. We spent about an hour discussing various aspects of rocketry, which was the perfect way to end the evening. For those of you who haven't heard an episode of The Rocketry Show, you ought to mosey over there and give it a listen - lots of good rocket stuff crammed into an hour!

Steampunked rockets on display at registration table (Click to enlarge).
On Sunday morning, I joined the other NARCON attendees for a special showing of the Space Station IMax movie and a docent-guided tour of the Udvar-Hazy Center of the National Air and Space Museum. It was very nice to be back amongst all that aerospace history - planes and rockets in abundance - but we got the extra cool bonus of a behind-the-scences look at the Air and Space archives. Very impressive!

Back at glorious Udvar-Hazy (Click to enlarge)!
NARCON formally ended with the tour of Udvar-Hazy.  I returned to my hotel room and collapsed, very happy to have been part of this year's convention, which had over 200 attendees. Good company, lots of learning, lots of memories - what more can you ask?

Monday, February 20, 2017

Sunday flying...

The 'Cherokee nation' loaded on the pads (Click to enlarge).
Our streak of nice Saturdays was broken by the rain that started this past Friday night, continuing through Saturday morning. It put a damper on TARC practice, but left hope for some personal flying on Sunday, which was absolutely beautiful - blue sky, temperatures in the low 70's, and a light wind out of the North. Not being able to pass up a day like that, Duane and I showed up at Pegasus around 1 PM, with our range gear and a SUV full of rockets. For me, it was 'scale day' - I had packed 6 of my semi-scale birds and the indomitable Beulah, equipped with a Perfectflite PNUT altimeter and an HD keychain camera. Duane brought his 2 member 'Cherokee nation', an Estes Leviathan, the yellow and black Beast, a Death Star from the old Estes Star Wars series, a red Semroc Scout, and a purple and yellow mid power rocket. Set up took just over 10 minutes, and there was mucho flying in the 2 hours that followed; here's the short flight log:

My Little John gets started by an A3 motor
(Click to enlarge).
The Little John under chute (Click to enlarge).
Estes Little John clone - flying on an A3-4T motor, my olive drab Little John was first up, serving as the 'wind test vehicle.' Flying straight as an arrow, it grabbed some very decent altitude before descending under a 9" ripstop nylon chute to a soft landing near the pads. A good way to start the day!

BMS Mini Bomarc posing on the pad
(Click to enlarge).
And leaving it (Click to enlarge).
BMS Mini-Bomarc - Unlike its past flight, this model deviated sharply from vertical after leaving the rod; I am still puzzling over the cause. The A10-3T managed to put it at a decent ejection altitude, but the shock cord snapped near the nose cone, causing the rocket body to slowly fall horizontally to the ground. The nose landed only a few feet away from the rest of the rocket, which was undamaged.  Fortune had smiled upon me - I have enough rockets in the repair queue.

Duane's yellow and purple rocket rides red fire up the
rail (Click to enlarge).
And sticks the landing (Click to enlarge).
Yellow and purple rocket - this mid power bird of Duane's was loaded with an old Aerotech Redline motor, which took 2 tries to start. Even then, it huffed and chuffed quite a bit before leaving the pad (kinda like me at the field). The bird achieved a modest altitude before ejection, which snapped the shock cord - I was worried a trend might be developing. Both parts were recovered with little damage, though the body did "stick the landing" on one fin in the soft ground.

My Patriot on the pad (Click to enlarge).And leaving the rod on a B6-4 (Click to enlarge).
Estes Patriot - Always a good flyer, my semi-scale Patriot headed into the blue on a B6-4. Ejection was near apogee, and landing was soft and gentle. I was very relieved that the shock cord did not break.

The Thrustline D-Region Tomahawk starts to
move on a D12-5 (Click to enlarge).
Duane tries to get it out of the tree (Click to enlarge).
Thrustline D-Region Tomahawk - I figured that this model was due some time in the air, so it was next up on an Estes D12-5. It soared to maybe 800 feet or so and popped the ripstop parachute just past apogee. Everything was looking good until I noticed it was headed for the line of small trees at the edge of the field on the east side. Sure enough, it plopped itself into the branches of one, just out of reach, requiring the use of a nearby pole and some jumping on the part of Duane for recovery. It's a bit scratched from the extraction, but a little touchup should have it ready for more flying.

The Beast on the pad (Click to enlarge).And emitting a cloud of smoke on its way up
(Click to enlarge).
The "Beast" - Duane's old TARC rocket nearly gassed us both as we strove to get away from the dark sooty smoke cloud left behind by the Smoky Sam Aerotech motor. The Beast performed well on F impulse, landing safely under parachute.

Liftoff of the Falcon 9 (Click to enlarge).And descending by parachute (Click to enlarge).
Falcon 9 with fairing - I picked this model because Space X had just completed a successful Falcon 9 launch from the Cape earlier that morning. The small version flew straight into the blue for some decent altitude on a D12-5, recovering undamaged on a black ripstop nylon parachute (no, it did not have retro rockets like the real one - way beyond my skills). It would fly again before we left, with the same results.

Duane with his upscale Cherokee-D
(Click to enlarge).
It lifts off on the thrust of 3 E motors
(Click to enlarge).
Upscale Cherokee-D - The largest member of Duane's 'Cherokee nation', it was propelled off the pad by a cluster of 3 Estes E9 motors. The arrow-straight flight was recorded by an onboard camera, and I am dying to see the footage, because - yep, you guessed it - the shock cord snapped. It's a good thing that the Cherokee-D has those big fins, as they caused the rocket body to spin horizontally, slowing its fall to the ground. No damage to the big chief, so I'm sure it will make an appearance at Pegasus soon - hopefully with a stronger shock cord. Watching the video is going to be nausea-inducing with all that spin.

Duane's Cherokee-D on his Tilt-a-pad replica
(Click to enlarge).
On its way to being a sacrificial lamb
(Click to enlarge).
Semroc Cherokee-D - Duane got brave with this model; he actually loaded a D12-7 into the motor tube and broke out the binoculars (the "manual tracking device") in anticipation of the altitude. Sure enough, the Cherokee-D shot off the pad on its way to achieving the highest peak height of the day. I was pleasantly surprised that my old eyes could follow it all through the flight - through apogee and ejection, all the way down to landing - which was 40 feet up in a tree on the south edge of the field. Duane made the required trip down range to wave bye to his sacrifice to the rocket gods, who mocked him by dangling it from a branch. However, I have been informed that there is an almost finished replacement, so the Cherokee nation will not be depleted of members. 

Beulah flight video

Beulah - Powered by a D12-5, Beulah reached a bit over 700 feet before deploying her chute for a soft landing. Last night I merged the data from the PNUT altimeter with the keychain video to create the following vid, which marks the first time I have modified an existing gauge in DashWare.

Beulah on a D12-5 (Click to enlarge).My Viking 7 scale model rises from the smoke of 2
B6-4 motors (Click to enlarge).
Rocketarium Viking 7 - My first scale kit from Rocketarium, it was also the only cluster flown on Sunday. 2 B6-4's helped it along to a nice altitude, where it deployed its 18" ripstop nylon parachute. Landed undamaged in the field.

Duane's Estes Death Star (Click to enlarge).Bound for destruction on a C6-3 (Click to enlarge).
Estes Death Star - Next up was Duane's Death Star, which lumbered off the pad on C6 power. Apogee was around the usual 200 feet, and the Death Star broke into 4 pieces at ejection, each recovered by streamer. The fragments were recovered by a young guest, who was quite delighted by the flight. Duane gave her one of the Estes Make-It-Take-It rockets, which her dad built in a very short time with gel super glue.

The blast deflector glows blue at the ignition of
the Leviathan's F motor (Click to enlarge).
The Leviathan clears the rail (Click to enlarge).
Estes Leviathan - This classic of Duane's rode a pillar of blue fire into the sky, with the F52 motor carrying it to over 900 feet. The Jolly Logic Chute release deployed the parachute at 300 feet, landing the model undamaged on the field. Our club president and his wife had joined us on the field about the time Beulah made her flight, and we quickly impressed Laura into LCO duty. Naturally, she did a fabulous job sending the Leviathan and other models on their upward journeys.

Estes Scout - Duane's Scout got a little exercise at the launch, doing its thing on an A motor. Unfortunately, tumble recovery doesn't work so well when you land on asphalt; one of the fins was broken on landing, to the point where Duane has decided to build another. The Scout was his first rocket way back when, and he likes to have one around as a memorial to those ancient times.

Duane's Scout blasts off (Click to enlarge).The maiden voyage of our guest's Make-It-Take-It
(Click to enlarge).
Estes Make-It-Take-It - The last flight of the day was that of our young visitor's Make-It-Take-It; the red, white, and blue model put in a text book performance on an A8-3, landing softly under the orange and white Estes parachute.

And that was it for the day - 16 flights in 2 hours. A nice bit of fun for a Sunday afternoon.